1. Open your file and click "File," choosing "Save As" from the drop-down menu
2. Choose the name you would like the file to be saved as and the place on your computer you would like to save it, then change the File Format option to "Comma Separated Values (.csv)" from the drop-down menu. (Your view might appear different if you do not use a Mac)
3. Click "Save"
4. Upload the list into your Signpost Merchant Center